• 한국잠사곤충학회지
• /
• 제13권2호
• /
• pp.95-97
• /
• 1971

추잠기 수확직후 가지의 선단 잔엽에 MH (Maleic hydrazide) 살포가 내한성 증대에 미치는 영향을 시험하여 다음과 같은 성적을 얻었다. 1. 0.25% 이상의 농도로 살포하면 저장전분이 증가되고 이듬해 봄에 가지의 선단고사비율이 낮아졌다. 2. 중부지방에서의 살포적기는 9월중순경이다. 3. 우량 뽕나무인 일지뢰, 개량서반, 노상, 수원상4호는 MH의 살포효과가 인정되었다. 4. 품종간의 내한성 정도는 수원상4호＞개량서반＞일지뢰＞노상 순으로 강하였다.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2000년도 추계 학술대회지
• /
• pp.151-152
• /
• 2000

• 한국작물학회지
• /
• 제35권1호
• /
• pp.53-57
• /
• 1990

재래종 연초재배시 곁순제거방법이 수량, 품질 및 내용성분에 미치는 영향을 밝혀 보다 효과적인 곁순제거방법을 구명코자 시험한 결과는 다음과 같다. 1. 적심후 수적아, MH살포구가 타처리에 비하여 수량 및 kg당 가격이 높았고 Fatty alcohol처리는 수량에서 다소 감소하였으며, MS향초, 곁순 방치, 무적심구는 수량 및 kg당 가격이 모두 낮았다. 2. 적심후 수적아, Fatty alcohol 처리구는 무적심 등 타처리에 비하여 회분함량이 낮았고, 환원당, 니코틴함량 및 pH가 높았으며, MH 처리구는 수적아 및 Fatty alcohol 처리에 비해 환원당이 높고, pH와 니코틴함량이 다소 낮았다. 3. 곁순 수제거에 비하여 MH 살포구는 부풀성 및 연소성이 저하되는 경향이였다.

• Journal of Crop Science and Biotechnology
• /
• 제11권3호
• /
• pp.215-222
• /
• 2008

Multilocation trials on 36 rice(Oryza sativa) genotypes of 3 different maturity groups were conducted at four different locations of Orissa for 3 years and 30 ragi(Eleusine coracana) genotypes of 2 different maturity groups were evaluated in three environmental conditions for 3 years. Grain yield data were subjected to stability analysis following linear regression model to estimate adaptability and stability parameters, i.e. b, and $S^2d$ Stability of performance of genotypes was also estimated by two other stability parameters viz., ecovalence W and AMMI stability value ASV. The rice and ragi genotypes of different duration groups showed wide variation in their mean yield, b, $S^2d$, W and ASV parameters. Seeds of the 36 rice and 30 ragi genotypes were treated with 500 and 100 ppm aqueous solution of maleic hydrazide(MH) for 24 hours, respectively to study MH-sensitivity. Sensitivity of genotypes to MH treatment was estimated in terms of seedling growth inhibition index(SGI). The rice and ragi genotypes showed wide differences in their MH-sensitivity in terms of SGI. Relationship of MH-sensitivity of genotypes with their yielding ability, adaptability and stability of performance was tested by contingency $x^2$ test. Low sensitivity of rice and ragi genotypes to MH in terms of SGI appeared to be good indicators of high yielding ability of genotypes. Also, low and high MH-sensitivity of genotypes would be a good indicator of better adaptability to rich and poor environments, respectively, in ragi but not in rice. Low MH-sensitivity of genotypes could be the good indicator of stability of yield performance in rice but not in ragi.

• 농업과학연구
• /
• 제29권1호
• /
• pp.8-14
• /
• 2002

MH 39는 품종과 처리농도에 관계없이 포도 부초신장을 유의하게 억제시켜 부초의 과번무를 막을 수 있는 약제로 인정되었다. 처리시기는 거봉은 만개 30일 후, 캠벨 얼리는 만개 35일 후 처리구가 이상적이었으나 이는 공시수의 수세에 따라 달라질 수 있다는 것이 확인되었다. 처리농도는 $3,900mg{\cdot}L^{-1}$의 경우 부초의 정단부가 고사 또는 탈락되는 등 과도한 반응이 나타났으므로 $1,950mg{\cdot}L^{-1}$이 적정농도임이 확인되었다. 부초생장의 억제효과는 마디수의 감소와 마디길이가 단축됨으로서 나타났다. 그러나 과실 품질에는 영향을 미치지 않았고 오히려 캠벨 얼리의 경우는 anthocyanin므로 포도의 부초제거의 노력을 생력화 할 수 있는 유용한 약제가 될 것으로 판단되었다.

• 한국연초학회지
• /
• 제22권1호
• /
• pp.39-44
• /
• 2000

This study was carried out to obtain the basic information about the sucker producing characteristics of certain burley tobacco varieties(Nicotiana tabacum L. var. burley) at Suwon and Chonju Experiment Station, Korea Ginseng & Tobacco Research Institute in 1999. The number and weight of suckers for 12 varieties or breeding lines were investigated three times, 45 days after transplanting for ground sucker, 10 days after topping, and 10 days after maleic hydrazide(MH) applying for upstalk sucker. KB 103 and KB 9416-1 produced less ground suckers and upstalk suckers than other entries did. KB 9210-8 produced less ground suckers and (Male sterile TC 612 x KB 108)F$_1$ also produced less upstalk suckers than other entries did. There was no differences among entries in sucker production at 10 days after MH treatment. Between the weight of total sucker and days to flower revealed the negative correlation, but not significant. The low sucker producing entries described above could be used as a parental line in the breeding program for the low sucker producing variety.

• 한국작물학회지
• /
• 제35권4호
• /
• pp.309-314
• /
• 1990

본 시험은 ethephon, maleic hydrazide(MH) 및 gibberellic acid(GA3)의 처리 및 처리시기가 수도의 불임 및 다른 농업형질들에 미치는 효과를 구명하기 위하여 실시되었다. 인도형 품종인 삼강벼와 일본형 품종인 추청벼에 MH(6000ppm), ethephon(6000ppm) 및 GA3(10ppm)을 절간신장초기, 절간신장후기, 수잉초기, 수잉후기 및 출수기의 다섯단계에 걸쳐 처리하여 종실불임율, 주당수수, 간장, 수장 및 종실수량을 조사하였던바 그 결과를 요약하면 다음과 같다. 1. MH는 완전불임을 나타내었으나 출수지연, 잎마름, 줄기 및 이삭의 마름등과 같은 식물체에 대한 해작용이 심하였다. Ethephon은 50-60%에 가까운 불임율을 나타내었으나 식물체에 대한 해작용은 MH보다 그 정도가 낮았다. 2. GA3는 수도의 불임을 유기하지 않았고 간장을 약간 증가시켰다. 3. MH와 ethephon은 모두 수도의 간장 및 종실수량을 감소시켰으며 MH는 주당수수를 감소시켰다. 4. 화학제의 처리시기가 이를수록 더 높은 불임율이 유기되었고 그에 따른 해작용이 큰 것으로 나타났으며, 인도형 품종과 일본형 품종간에 불임율차이를 보였다.

• 한국약용작물학회지
• /
• 제20권5호
• /
• pp.315-319
• /
• 2012

This study was conducted to select plant growth regulators effective at ginseng berry set inhibition to help root growth in Korean ginseng (Panax ginseng C. A. Meyer). PGRs (ethephon, gibberellic acid, maleic hydrazide, coumarin) were applied to field grown 5-year-old Korean ginseng between one and two times, before and during bloom in 2009, 2010. The number of treatment was more effective in ginseng berry set inhibition when used two times compared with one time in GA 1,000 ppm, MH (5,000, 10,000 ppm), coumarin (5,000, 10,000 ppm) treatment. According to treatment period of plant growth regulator, ginseng berry set inhibition rate from 20days before flowering date to 5days after blooming was the highest in MH 5000 ppm showing 99.9% and the lowest in GA 100 ppm showing 32.8%. The spray treatments of Ethephon (50, 150 ppm) and MH (5,000, 10,000 ppm) from 20 days before the flowering bloom up to 5 days before, and coumarin (5,000, 10,000 ppm) from 20 days to 6 days and before blooming that induced the inhibitory effect more than 90% after 12 weeks. Considering ginseng berry set inhibition characteristics and treatment period ethephon and coumarin was important about applied period but, MH treatment appeared to effective ginseng berry set inhibition regardless of treatment period.

• 한국연초학회지
• /
• 제23권1호
• /
• pp.5-11
• /
• 2001

Experiments were conducted to evaluated the sucker control efficiency of several suckercides and their combinations for flue-cured tobacco in Korea. In 1999, Flumetralin(Prime+, P+), Butralin(B), Fatty alcohol(FA, n-decanol 85%), pottasium salt of maleic hydrazide(MH), tank mix of MH with P+ (MH·P+), and another tank mix of MH with FA(MH·FA) were applied after topping, respectively, then sucker number and sucker dry weight were investigated on the 30th and 50th day from treatment. Sucker number and dry weight were significantly lowered by P+, B, FA and MH·P+ applications compared with those of MH and MH·FA for both investigated periods. A significant reduction in sucker number and dry weight was observed in P+, B, and MH·P+ applications. FA treatment was not so much effective in sucker control as P+. In 1999 and 2000, several suckercides and tank mixes of their combinations were applied first at button stage and second after topping, respectively, to compare the effects of sucker control on yield, price index and chemical components of cured leaves. Compared to the standard method of FA 30x at button stage followed by MH40x application after topping(FA 30x + MH 40x), sucker number and dry weight decreased by [FA 30x (or P+ 1%] or [FA 30x(or B 1.5%) + MH 60x·B 1.5%] treatments, even at reduced MH levels. But yield, price index and chemical components of cured leaves were not differed among treatments.

• 한국연초학회지
• /
• 제25권2호
• /
• pp.154-159
• /
• 2003

Using sucker agents for tobacco can lead some advantages including saving labor, increasing yield and reducing the spread of diseases. At present, the sucker control agents used in China mainly depended on importing. The agents includes two groups, systemics (Maleic hydrazide: MH, etc) and partial systemics (Butralin, Flumetralin, Pendimethalin, etc). Now, Pendimethalin(a.i. 33%, wp) was used extensively all over the tobacco field in China. Sucker control agents will also be used for tobacco production in China. Because of the high price of the imported agents, China has studied on the domestic production of tobacco sucker control agents and has made some progresses.